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03:08
ScienceCasts: Sunset Comet
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02:47
ScienceCasts: Summer Meteor Shower
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02:50
ScienceCasts: A Meteor Shower from Halley's Comet
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04:12
ScienceCasts: A Naked-Eye Comet in March 2013
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03:39
ScienceCasts: NASA on the Lookout for a New Meteor Shower
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03:25
ScienceCasts: Embers from a Rock Comet: The 2014 Geminid Meteor Shower
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03:50
ScienceCasts: Rock Comet Sprouts a Tail
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01:47
Where, when, and how to watch this week's meteor shower
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04:06
ScienceCasts: How to Land on a Comet
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04:08
ScienceCasts: Rosetta Comet Comes Alive
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04:02
ScienceCasts: Comet of the Century
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02:29
ScienceCasts: Meteors from Halley's Comet
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05:08
ScienceCasts: Collision Course? A Comet Heads for Mars
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01:48
How To Watch 2017 Leonid Meteor Shower
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03:34
ScienceCasts: Mission to Land on a Comet
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03:41
ScienceCasts: Comet ISON to Fly By Mars
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02:55
ScienceCasts: Sun Grazing Comet
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04:17
ScienceCasts: Meteor Smoke Makes Strange Clouds
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03:27
ScienceCasts: Draconid Meteor Outburst
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03:48
ScienceCasts: Comet ISON Meteor Shower
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03:15
ScienceCasts: The 2012 Perseid Meteor Shower
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03:05
What You Actually See During A Meteor Shower
